WP-ADMIN Error.

Hey, there is a problem with my Theme, I seem to not be able to load into WP-ADMIN without disabling the theme..

Warning: Cannot modify header information – headers already sent by (output started at /websites/123reg/LinuxPackage21/at/oz/_i/atoz-ins.co.uk/public_html/wp-content/themes/enfold/functions-enfold.php:1) in /websites/123reg/LinuxPackage21/at/oz/_i/atoz-ins.co.uk/public_html/wp-includes/pluggable.php on line 1179

This is the error code, have you seen something like this before? I do have Total Cache installed.

My layslider also doesn’t work, it keeps on stretching and doesn’t allow me to post it.. It comes up with this error when I try :

Warning: Cannot modify header information – headers already sent by (output started at /websites/123reg/LinuxPackage21/at/oz/_i/atoz-ins.co.uk/public_html/wp-content/themes/enfold/functions-enfold.php:1) in /websites/123reg/LinuxPackage21/at/oz/_i/atoz-ins.co.uk/public_html/wp-admin/post.php on line 197

Another pointer to point out is.. I’ve lost the ability to use the Media Library…

Thanks